Reply To: hydrostatic pressure vs pressure

[peteroznewman]

What is the OD of this pipe?

Go back to DesignModeler or SpaceClaim and use the Midsurface tool to replace the solid pipe with a surface. This will make it much easier to mesh with larger shell elements that will have good element quality and speed up the solution time.

A Fixed Support introduces higher stress, replace the Fixed Support with a Remote Displacement, Behavior = Deformable and set all six values to 0.

Please describe the real method of end closure. You may want to put a cap surface in the CAD and apply pressure to that as well to have some axial load in the pipe. A dome end will introduce the smallest stress rise if you want to avoid element failure near the cap to focus on the element failure near the repair.